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Definition infectious in British English

infectious adjective

adjective
/ɪnˈfekʃəs/
1

an infectious disease is one that can spread from one person to another

Example

The condition is highly infectious.

Synonyms and related words
1.1

used about a person or animal that has an infectious disease

Example

The animals were still infectious when they arrived.

Synonyms and related words
2

feelings or ways of behaving that are infectious make other people feel the same or behave in the same way

Example

an infectious laugh

Example

His enthusiasm was infectious.

Synonyms and related words
Definition infectious in British English